Superman vs The Amazing Spider-Man: The Battle of the Century is a comic book jointly published by Marvel Comics and DC Comics in 1976. It was the second crossover between DC Comics and Marvel following their joint collaboration on MGM's Marvelous Wizard of Oz, and the first modern superhero crossover.

The writing was done by Gerry Conway and the penciling by Ross Andru. Both of these creators had worked on Superman and Spider-Man before in their own titles.[2] The original edition lists no editor, with the splash reading: "Presented by: Carmine Infantino and Stan Lee"; this was changed to "Edited by" in a 1991 reprint. Conway in 2009 said he "did the actual editorial work," i.e. "proofing, supervision of production, supervision of art and lettering and coloring".[3]Neal Adams redrew the major Superman figures.[4] Inker Dick Giordano recalled, "[T]he pages were sent to [Giordano and Adams' studio] Continuity and were mostly left on my desk... and Neal took it upon himself to redraw the Superman figures without telling me that he was going to do it. I didn't complain, but also I also never mentioned it to anyone at the time and I never spoke of it until now... mostly of for respect for Ross and his work [4]

John Romita Sr. drew some Marvel-character faces and did some Spider-Man alterations in chapter two.[3] Giordano's assistant, Terry Austin, inked backgrounds, except for three pages of the five-page "Prologue 3", on which Bob Wiacek inked backgrounds.[3]

Though it is not considered canon, bits of the story have been shown in some of Marvel other titles:

What If? #1 (Feb. 1977): Uatu The Watcher shows glimpses of the various universes. Among them show's Spider-Man about to receive a punch from Superman (showing his sleeve and fist only). Uatu even poses the question as to whether the event happened in the mainstream continuum or an alternate reality.

Superman rescues Metropolis from a giant-robot attack by his old foe Lex Luthor, who manages to send some sort of stolen device to one of his strongholds for safekeeping. Elsewhere (in New York), Spider-Man battles and defeats his longtime foe Doctor Octopus and his henchmen.

Sent to a federal "super-security" prison (designed for the incarceration of super-villains), Luthor and Doctor Octopus agree to combine forces in order to conquer the world and kill both of the men who put them behind bars. In a matter of minutes, combining their abilities, the two super-villains escape.

Newspaper photographer Peter Parker (Spider-Man's alter ego) and Mary Jane Watson attend a press conference in New York City that features a new satellite, ComSat, capable of disrupting global weather patterns. Journalists Clark Kent (Superman's alter ego) and Lois Lane also attend, arriving by plane from Metropolis.

Peter saves Lois' life, and then introduces her to Mary Jane. In seconds, Lex Luthor, disguised as Superman, swoops in and shoots a teleportation ray out of his Superman mask, teleporting Lois and Mary Jane to an unknown destination. Luthor flies away, and both Peter and Clark soon follow him and change into their respective costumes.

Superman mistakenly blames Spider-Man for the disappearance of the two women. The two begin to fight, but dodge each other's punches. Superman flies away at super-speed, evading Spider-Man's next attack, while trying to deduce what is happening. Luthor fires a gun at Spider-Man, irradiating the hero's costume with light similar to that emitted by a red sun. The red-sun radiation amplifies Spider-Man's powers, unbeknownst to either hero.

This allows Spider-Man's punches to hurt Superman until the radiation dissipates, and Spider-Man's powers return to normal levels. When his punches, instead of staggering Superman, suddenly have little effect, Spider-Man calls off the fight. Realizing they have been deceived, Superman, suspecting a plot by Luthor and Doc Ock, proposes they amicably join forces to solve the mystery and rescue the women.

Moving to Africa, Spider-Man and Superman battle Doctor Octopus, Lex Luthor, and a foe endowed by Luthor with super-strength and endurance and a red-sun irradiated sword. Spider-Man and Superman defeat the warrior only combining their powers. Spider-Man steals an Injustice Gang spaceship from Luthor's base in Africa and heads into outer space with Superman to confront Doctor Octopus and Luthor. The supervillains have used the Injustice Gang's Satellite Headquarters' computers in conjunction with the device stolen by Luthor to agitate the Earth's atmosphere with a combination of sonic waves and lasers, causing huge tornadoes and hurricanes worldwide. Superman is felled by the beam's high-pitched sonics and Spider-Man loses consciousness when the spaceship's oxygen is compromised.

The heroes awaken aboard the Injustice Gang Satellite, where Mary Jane and Lois are held captive. Superman defeats Doctor Octopus by tearing off two of his robotic arms and shattering his eyeglasses, while Spider-Man uses psychology to try to divide the villains. Doctor Octopus realizes that Luthor's scheme, if allowed to succeed, will effectively destroy human civilization, leaving them with "nothing to rule" even if they prevail against their heroic nemeses. He uses one of his robotic arms to destroy the weather machine's control console, stopping the potential disaster.

An enraged Luthor attacks and defeats Doctor Octopus. While Superman returns to Earth to stop a gigantic tidal wave from destroying most of the East Coast of the United States, Spider-Man defeats Luthor. Superman returns to the satellite, where Spider-Man has bound the two villains with his webs. Congratulating themselves on a job well done, Superman and Spider-Man take the villains into custody. In an epilogue, Clark and Lois go on a double date with Peter and Mary Jane.

A minor subplot of the story involves a barroom meeting between Daily Planet publisher and WGBS network chief Morgan Edge and Daily Bugle editor J. Jonah Jameson, in which the two irascible boss figures compare complaints about their employees Kent and Parker, and their respective propensities to suddenly disappear in the midst of crisis situations.

^McAvennie, Michael; Dolan, Hannah, ed. (2010). "1970s". DC Comics Year By Year A Visual Chronicle. Dorling Kindersley. p. 170. ISBN978-0-7566-6742-9. The tale was written by Gerry Conway and drawn by Ross Andru, both among the few [at that time] to ever have worked on both Superman and Spider-Man...The result was a defining moment in Bronze Age comics.